EP3161088B1 - Siegelklebstoffkomposition - Google Patents

Siegelklebstoffkomposition Download PDF

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Publication number
EP3161088B1
EP3161088B1 EP15733813.8A EP15733813A EP3161088B1 EP 3161088 B1 EP3161088 B1 EP 3161088B1 EP 15733813 A EP15733813 A EP 15733813A EP 3161088 B1 EP3161088 B1 EP 3161088B1
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Prior art keywords
composition
weight
additives
copolymer
composition according
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English (en)
French (fr)
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EP3161088A1 (de
Inventor
Clio COQUET
Betty Laurent
Samuel Devisme
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SK Geo Centric Co Ltd
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Arkema France SA
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Priority to PL15733813T priority Critical patent/PL3161088T3/pl
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J123/00—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
    • C09J123/02—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers not modified by chemical after-treatment
    • C09J123/04—Homopolymers or copolymers of ethene
    • C09J123/08—Copolymers of ethene
    • C09J123/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
    • C09J123/0869—Acids or derivatives thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B32B15/082—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising vinyl resins; comprising acrylic resins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B32B15/085—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B32B15/09—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
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    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/10—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/302—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising aromatic vinyl (co)polymers, e.g. styrenic (co)polymers
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/308—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising acrylic (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
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    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/15—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
    • B32B37/153—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state at least one layer is extruded and immediately laminated while in semi-molten state
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/20—Carboxylic acid amides
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/08—Copolymers of ethene
    • C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
    • C08L23/0869—Acids or derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
    • C08L33/04—Homopolymers or copolymers of esters
    • C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
    • C08L33/08—Homopolymers or copolymers of acrylic acid esters
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02—Non-macromolecular additives
    • C09J11/06—Non-macromolecular additives organic
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2311/00—Metals, their alloys or their compounds
    • B32B2311/24—Aluminium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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    • B32B2323/10—Polypropylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
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    • B32B2333/00—Polymers of unsaturated acids or derivatives thereof
    • B32B2333/04—Polymers of esters
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J123/00—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
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    • C09J123/10—Homopolymers or copolymers of propene

Definitions

  • the present invention relates to an adhesive or binder composition based on a copolymer of ethylene and of alkyl acrylate, which can be used in an extrusion-coating process for application on a support or in an extrusion process. lamination to bond together several supports which may or may not be of a different nature, one of these supports possibly being a thermoplastic or a metal such as aluminum in particular.
  • the invention thus also relates to a sealing film constituted by this adhesive composition or a multilayer structure including the support and said sealing film.
  • packages with a peelable opening can be produced by sealing a lid on a container, the containers being able to be composed of different materials and in particular different polymers (polystyrene, polyether terephthalate, polyethylene, polypropylene, etc.).
  • the lids must have a sufficiently strong adhesion to the container to avoid the unexpected opening of the packaging but also weak enough to be peelable.
  • the lids are multilayer structures and generally consist of several layers including at least the adhesive sealing layer (peelable) and the so-called “mechanical” layer conventionally made of polymer, paper, aluminum. These covers can be produced by extrusion-coating or by thermolamination of a film obtained by extrusion-blow molding of the sheath.
  • the formulation of the sealing adhesive layer depends on the container on which it is desired to seal the lid. It is known to those skilled in the art that the addition of tackifying resin in polyethylene (PE), polypropylene (PP), a copolymer of ethylene and vinyl acetate (EVA) makes it possible to obtain a formulation of sealing resin whose sealing performance is excellent on many types of support.
  • PE polyethylene
  • PP polypropylene
  • EVA vinyl acetate
  • compositions make it possible to lower the minimum sealing temperature.
  • thermoplastic adhesive sealing composition which does not have the aforementioned drawbacks but which retains the good properties obtained with the adhesive compositions of the prior art.
  • the Applicant has discovered that the association of a particular type of copolymer with at least one tackifying resin as well as processability additives in a particular ratio, in particular for anti-blocking agents and slip agents, makes it possible to 'obtain a sealing adhesive composition (peelable) exhibiting all the properties of the adhesive compositions according to the prior art while overcoming the drawbacks, essentially in terms of processability and transparency of the composition, of these compositions.
  • the adhesive composition according to the invention containing less than 5% (or optionally up to 5% inclusive) of tackifying resin, makes it possible to retain good sealing properties while maintaining good thermal stability and the desired optical properties.
  • the invention also relates to a sealing film consisting of a composition as presented above, characterized in that its thickness is between 10 and 20 micrometers ( ⁇ m).
  • the present invention also relates to a multilayer structure comprising at least two films, one of which is the previously mentioned sealing film, characterized in that the second film is chosen from aluminum, paper or cardboard, cellophane, films based on polyethylene, polypropylene, polyamide, polyester, polyvinyl chloride (PVC), polyvinylidene chloride (PVDC), polyacrylonitrile (PAN) resins, these films being oriented or not, metallized or not, treated or not by physical means or chemical, and films coated with a thin inorganic barrier layer, such as polyester (PET SiOx or AlOx).
  • a thin inorganic barrier layer such as polyester (PET SiOx or AlOx).
  • the copolymer of ethylene and of acrylate may be an alkyl (meth) acrylate, the alkyl group possibly having up to 24 carbon atoms.
  • this copolymer of ethylene and acrylate mention may be made of C1-C8 acrylates (from 1 to 8 carbon atoms), or alkyl acrylates such as (meth) acrylate. C1-C8 alkyl, n-butyl or isobutyl acrylate and methyl ethyl methacrylate.
  • MFIs Melt Flow Index
  • processability additives in the context of the present invention, they are specifically and only of two kinds, namely anti-blocking agents and slip agents.
  • anti-blocking agent is meant the fact that such an additive makes it possible to reduce the adhesion between two polymer surfaces.
  • the anti-blocking agents according to the present can consist of components of organic type such as behenamide, stearamide, ethylene bis-oleamide, ethylene bis-stearamide or components of inorganic type such as silica, talc, calcium carbonate, kaolin. , clay.
  • slip agent is understood to mean the fact that such an additive makes it possible to reduce the coefficient of friction of the product to which it is added.
  • the slip agents according to the present can consist of erucamide, oleamide, oleyl palmitamide and stearyl erucamide.
  • the preparation of the adhesive composition according to the present is carried out according to methods well known to those skilled in the art.
  • such an adhesive composition can be obtained conventionally by co-rotating twin-screw extrusion.
  • a multilayer structure comprising a film of a composition according to the present invention is obtained without difficulty by a person skilled in the art according to one of the well known methods, such as for example extrusion-lamination.
  • this synthetic route namely extrusion-lamination, is particularly suitable for the constitution of a film of composition according to the invention or of a multilayer incorporating such a film
  • the present invention is not limited to this method of synthesis and could for example be considered in a method of preparation by thermolamination of a film obtained by blowing a sheath.
  • test pieces of compositions tested are produced exactly according to the same process.
  • a cover is produced, that is to say a multilayer including the composition to be tested.
  • lids are produced by coextrusion coating on aluminum on a Collin® laboratory line.
  • the structures of all the test pieces are exactly the same, with the exception of course of the adhesive composition to be tested.
  • the structure of these lids consists of Aluminum 37 ⁇ m / binder 6 ⁇ m / adhesive composition 15 ⁇ m.
  • the physicochemical properties to be tested for an adhesive sealing composition are numerous.
  • the tests carried out and presented below include the peel test, the measurement of the blocker, the measurement of the static and dynamic friction coefficients, the Haze, the gluing on a chill roll. and thermal stability tests.
  • the peel forces are measured after sealing of the lid (various aforementioned specimens) on various supports.
  • a seal is welded to a polymer sheet representing the container (in particular polystyrene, polyether terephthalate, etc.) using an AINPACK® sealer (thermal sealer).
  • the jaw width is 3 millimeters (mm).
  • test pieces After conditioning the “sealed samples” in an atmosphere at 50% RH (Relative Humidity) and 23 ° C for at least 24 hours, the test pieces are peeled at a constant speed (100 mm / minute) by means of a Synergie 200H dynamometer equipped with a 100 N force cell and a 90 ° plate.
  • RH Relative Humidity
  • the blocker is measured on a monolayer film of an adhesive composition, according to the present invention or according to the prior art, 50 ⁇ m (micrometer) thick by extrusion coating according to the ISO 115-02 standard entitled "Plastics - Film and sheeting - Determination of blocking resistance ”.
  • the static and dynamic friction coefficients are measured on a single-layer film of an adhesive composition, according to the invention and according to the prior art, 50 ⁇ m thick produced by extrusion coating according to the ASTM D 1894 standard entitled "Standard test method for static and kinetic coefficients of friction of plastic film and sheeting ”.
  • the Haze is measured on a monolayer film of an adhesive composition, according to the invention and the prior art, 50 ⁇ m thick, produced by extrusion coating according to standard ASTM D-1003-007 entitled "Standard test method for haze and luminous transmittance of transparent plastics ”.
  • the bonding on a cooling roll is evaluated during the production by extrusion-coating of a specimen cover. The more the seal separates at the top of the cooling roller, the greater the bonding. More precisely, a force intended to pull the film present on the cooling roller is exerted and the ease of stretching of the film is measured. In order to fully understand this test and the resulting measurement, the figure 1 in the appendix provides a good understanding of the principle of the test and its measurement, even if it is understood that humans are familiar with this procedure.
  • the analyzes are carried out by Thermo-Gravimetric Analysis (TGA) according to the following procedures:
  • Lotryl® 20MA08 ethylene-methyl acrylate copolymer with an acrylate content of 20% by weight of the copolymer and an MFI of 8 g / 10 min. (190 ° C, 2.16 kg). In the tables of results presented below, this Lotryl® is denoted by the initials 20MA08.
  • Lotryl® 40MA10 ethylene-methyl acrylate copolymer in which the acrylate content is 40% by weight of the copolymer and the MFI of 8 g / 10 min. (190 ° C, 2.16 kg). In the tables of results presented below, this Lotryl® is denoted by the initials 40MA08.
  • Lotryl® 10MA08 ethylene-methyl acrylate copolymer in which the acrylate level is 10% by weight of the copolymer and the MFI of 8 g / 10 min. (190 ° C, 2.16 kg). In the tables of results presented below, this Lotryl® is denoted by the initials 10MA08.
  • Tackifying Resin (commercial): Fully hydrogenated low molecular weight tackifying resin with a softening point of 123 ° C. In the tables of results presented below, the tackifying resin is denoted by the initials RT.
  • Talc 10MOOS sold by the company Imerys this processability agent fulfills the function of both an anti-blocking agent and a slip agent. This component is hereinafter referred to as talc.
  • EBS Ethylene-bis-stearamide supplied by the company Croda. This processability agent is an anti-blocking agent. This component is denoted EBS in the following.
  • Er Erucamide supplied by the Croda company. This processability agent is a slip agent. This component is denoted Er in the following.
  • the sealing adhesive composition should exhibit certain advantageous characteristics.
  • Thermal stability is measured with the different indicators mentioned in the table below.
  • the very clear gain in stability of the compositions according to the invention is observed, in particular, with a composition having a tackifying resin content of 10% by weight of the composition.
  • Formulation Degradation in air Degradation onset under N 2 Loss during a 1 hour isotherm under nitrogen 230 ° C 250 ° C 280 ° C 300 ° C n ° 1 330 398 0.60% 0.82% 1.31% 1.53% n ° 2 317 370 0.75 1.31 2.72 3.14 n ° 3 335 402 0.42 0.62 0.93 1.02 n ° 4 314 363 0.86 1.43 3.2 4.26 n ° 5 316 370 0.76 1.47 2.78 3.08 n ° 6 331 400 0.59% 0.81% 1.30% 1.50% n ° 7 310 350 1.3% 2.2% 4.5% 6.2% n ° 8 337 409 0.22% 0.26% 0.35% 0.52%

Claims (10)

  1. Klebstoffkomposition, die in einem Verfahren zur Extrusionbeschichtung zur Aufbringung auf eine Auflage oder in einem Verfahren zur Extrusionslaminierung zum Kleben von mehreren Auflagen verschiedener Art oder nicht untereinander in einem großen Temperaturbereich verwendet werden kann, umfassend:
    - 91 bis 98 Gewichtsprozent der Komposition eines Ethylen- und Alkylacrylatpolymers;
    - mindestens ein klebrigmachendes Harz;
    - Verarbeitbarkeitszusätze, umfassend mindestens eine Antiblockiermittel und ein Gleitmittel,
    dadurch gekennzeichnet, dass das klebrigmachende Harz zwischen 1,5 % und 5 % des Gewichts der Komposition darstellt und die Zusätze zwischen 0,5 % und 3,5 % des Gewichts der Komposition darstellen, und dadurch, dass das Antiblockiermittel in den Verarbeitbarkeitszusätzen mindestens 60 Gewichtsprozent der Zusätze darstellt.
  2. Komposition nach Anspruch 1, dadurch gekennzeichnet, dass das klebrigmachende Harz zwischen 3 % und 4 % des Gewichts der Komposition darstellt.
  3. Komposition nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Acrylatgehalt im Ethylen- und Alkylacrylatcopolymer im Bereich zwischen 15 % und 30 % des Gewichts des Copolymers liegt.
  4. Komposition nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Ethylen- und Alkylacrylatcopolymer aus einem Ethylen- und Methylacrylatcopolymer besteht.
  5. Zusammensetzung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der MFI des oben angegebenen Copolymers im Bereich zwischen 5 g/10 und 15 g/10 min. (bei 190 °C, 2,16 kg) liegt.
  6. Zusammensetzung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Verarbeitbarkeitszusätze zwischen 1,5 und 2,5 Gewichtsprozent der Komposition vorhanden sind.
  7. Komposition nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Verarbeitbarkeitszusätze einzig aus mindestens einem Antiblockiermittel und mindestens einem Gleitmittel bestehen, wobei das Antiblockiermittel mindestens 70 Gewichtsprozent der Zusätze darstellt.
  8. Komposition nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sie einzig aus dem oben angegebenen Copolymer, dem oben angegebenen klebrigmachenden Harz und den Verarbeitbarkeitszusätzen besteht.
  9. Siegelfilm, der aus einer Komposition nach einem der vorhergehenden Ansprüche besteht, dadurch gekennzeichnet, dass seine Dicke im Bereich zwischen 10 und 20 Mikrometer (µm) liegt.
  10. Mehrschichtige Struktur, umfassend mindestens zwei Filme, von denen einer gemäß Anspruch 9 ist, dadurch gekennzeichnet, dass der zweite Film ausgewählt ist aus Aluminium, Papier oder Karton, Zellophan, Filmen, basierend auf Polyethylen-, Polypropylen-, Polyamid-, Polyester-, Polyvinylchlorid (PVC)-, Polyvinilydenchlorid (PVDC)-, Polyacrylonitryl (PAN)-Harzen, wobei diese Filme ausgerichtet sind oder nicht, metallisiert oder nicht, auf physischem oder chemischen Weg behandelt oder nicht, und die Filme beschichtet sind aus einer feinen anorganischen Barriereschicht wie z. B. Polyester (PET SiOx oder AlOx).
EP15733813.8A 2014-06-26 2015-06-09 Siegelklebstoffkomposition Active EP3161088B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL15733813T PL3161088T3 (pl) 2014-06-26 2015-06-09 Zgrzewalna kompozycja klejowa

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1455949A FR3022915B1 (fr) 2014-06-26 2014-06-26 Composition adhesive de scellage
PCT/FR2015/051517 WO2015197933A1 (fr) 2014-06-26 2015-06-09 Composition adhesive de scellage

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EP3161088A1 EP3161088A1 (de) 2017-05-03
EP3161088B1 true EP3161088B1 (de) 2020-09-16

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DE102017212144A1 (de) * 2017-07-14 2019-01-17 Sig Technology Ag Flächenförmiger Verbund, insbesondere zum Herstellen formstabiler Nahrungsmittelbehälter, mit einer ersten und einer weiteren Haftvermittlerschicht, die jeweils einen Acrylatanteil aufweisen
CN107880461A (zh) * 2017-12-04 2018-04-06 佛山杰致信息科技有限公司 一种塑料存储罐的密封包装材料及其制备工艺
JP7395839B2 (ja) * 2019-04-05 2023-12-12 大日本印刷株式会社 シーラントフィルム
CN114316316B (zh) * 2020-10-10 2023-08-01 中国科学院化学研究所 一种耐光氧化的聚丙烯膜及其制备方法

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ES2836354T3 (es) 2021-06-24
FR3022915A1 (fr) 2016-01-01
US10119050B2 (en) 2018-11-06
FR3022915B1 (fr) 2016-06-24
CA2951488C (fr) 2023-02-14
EP3161088A1 (de) 2017-05-03
CN106459702A (zh) 2017-02-22
BR112016028999B1 (pt) 2022-03-29
CN106459702B (zh) 2018-12-14
JP6635951B2 (ja) 2020-01-29
CA2951488A1 (fr) 2015-12-30
DK3161088T3 (da) 2020-12-14
WO2015197933A1 (fr) 2015-12-30
JP2017524766A (ja) 2017-08-31
PL3161088T3 (pl) 2022-01-03
BR112016028999A2 (pt) 2017-08-22
US20170137676A1 (en) 2017-05-18

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